The Paris Peace Conference was held in January 1919 in Versailles, just outside Paris. The conference was convened to set the conditions for peace after the First World War. Although nearly thirty nations participated, representatives from the United Kingdom, France, the United States and Italy became known as the “Big Four”. The “Big Four” dominated the process that led to the formulation of the Treaty of Versailles, a treaty that ended World War I. When transitional justice is marginalized, conflicts can simmer. Despite clear evidence of KR`s atrocities, pressure from KR and its boss, China, has removed criminal responsibility for KR`s crimes from the PPA. Western leaders were reluctant to engage in a debate over counter-accusations related to the US bombing of Cambodia in the 1960s and 1970s. This failure has created the conditions for impunity for political crimes and human rights violations. It was only in 2007 that a UN court and Cambodian judges began trials against former KR leaders for crimes against humanity. However, the Cambodian case has contributed to current international standards that peace agreements should not include amnesty clauses for serious crimes and should address the needs of transitional justice. Another possible French policy was to seek rapprochement with Germany.
In May 1919, the diplomat René Massigli was sent on a secret mission to Berlin. During his visits, he proposed, on behalf of his Government, to revise the territorial and economic clauses of the next peace treaty.  Massigli said that “practical and verbal discussions” between French and German officials were desirable, leading to “German-French cooperation.”  In addition, Massagli told the Germans that the French considered the “Anglo-Saxon powers” (the United States and the British Empire) to be the greatest threat to France in the post-war world. He argued that France and Germany had a common interest in opposing “Anglo-Saxon domination” of the world, and he warned that “deepening the opposition” between the French and Germans “would lead to the ruin of both countries, to the benefit of the Anglo-Saxon powers.”  At the Paris Peace Conference, five major peace treaties were prepared (in brackets with the countries concerned): the Senate`s opposition to the Treaty of Versailles was based on Article 10 of the treaty, which dealt with collective security and the League of Nations. This article, opponents argued, transferred war powers from the U.S. government to the League Council. The opposition came from two groups: the “Irreconcilables,” who refused to join the League of Nations in all circumstances, and the “Reservists,” led by the chairman of the Senate Foreign Relations Committee, Henry Cabot Lodge, who were willing to ratify the treaty with amendments. While Lodge was defeated in his attempt to pass treaty changes in September, he managed to make 14 “reservations” on the matter in November. In a final vote on March 19, 1920, the Treaty of Versailles was not ratified by seven votes. As a result, the U.S. government signed the Treaty of Berlin on August 25, 1921.
It was a separate peace treaty with Germany that stipulated that the United States would enjoy all “rights, privileges, compensation, reparations, or benefits” conferred upon it by the Treaty of Versailles, but omitted any mention of the League of Nations, to which the United States never adhered. North Vietnam insisted for three years that the deal could not be reached unless the UNITED States agreed to remove South Vietnamese President Nguyễn Văn Thiệu from power and replace him with someone more acceptable to Hanoi. Nixon and Kissinger were unwilling to sign an agreement to overthrow a government that had not overthrown the FLN by force of arms, even though the scale of North Vietnamese claims is disputed. Historian Marilyn B. Young claims that the content of Hanoi`s proposal has been systematically distorted, from its initial request to allow Thiệu`s replacement to what Kissinger propagated as a demand for his overthrow.  Both sides agreed to withdraw all foreign troops from Laos and Cambodia and ban bases and troop movements through these countries. It was agreed that the DMZ would remain a provisional demarcation line at the 17th parallel, with a possible reunification of the country “by peaceful means”. An international review commission composed of Canadians, Hungarians, Poles and Indonesians would be set up, with 1,160 inspectors to oversee the agreement. Under the agreement, South Vietnamese President Nguyen Van Thieu would remain in office until the elections.
The North Vietnamese accepted the “right of the South Vietnamese people to self-determination,” saying they would not launch a military movement in the DMZ and that there would be no use of force to reunify the country. The negotiations that led to the agreement began in 1968 after several long delays. As a result of this agreement, the International Commission on Supervision (ICC) was replaced by the International Commission on Control and Supervision (ICCS) to comply with the agreement. The main negotiators for the deal were U.S. National Security Advisor Henry Kissinger and North Vietnamese Politburo member Lê Đức Thọ; Both men were awarded the Nobel Peace Prize in 1973 for their efforts, although Lê Đức Thọ refused to accept it. The Paris Peace Conference was the official meeting of the victorious Allies after the end of World War I in 1919 and 1920 to determine the terms of peace for the defeated Central Powers. Dominated by the leaders of Britain, France, the United States and Italy, it led to five controversial treaties that reorganized the map of Europe and imposed financial sanctions. Germany and the other losing states had no voice, resulting in decades of political resentment.
There was general disappointment in Italy, which nationalists and fascists used to construct the idea that Italy was betrayed by the Allies and rejected what had been promised. This was a cause of the general rise of Italian fascism. Orlando refused to see the war as a mutilated victory and responded to nationalists who called for greater expansion: “Italy today is a great state. On an equal footing with the great historical and contemporary states. For me, this is our largest and most important expansion. Delegation to the Paris peace talks between the United States and North Vietnam (1968-69). He retired in 1969 (although he remained active in foreign policy in an unofficial capacity) and was replaced by Henry Cabot Lodge. The first Western response to the Bolsheviks` call to the people to make peace – and to their publication of the secret treaties in which the Allies had divided Europe among themselves – had been President Wilson`s Fourteen Points, which played the nationalist card against Lenin`s international appeal. An area of small nation-states should form a kind of quarantine belt against the red virus.
The establishment of new small nation-states along Wilson`s line, although far from eliminating national conflicts in the zone of revolutions. reduced the scope of the Bolshevik revolution. This was indeed the intention of the Allied peacemakers.  The 1991 PPA, which ended the conflict between Vietnam and Cambodia, was concluded at a unique moment of geopolitical confluence. The Cold War was over; The major international powers, regional powers and Cambodian parties are at an impasse; and everyone feared that the conflict was over. Japan has sought to sit on the United Nations Security Council (UNSC) as well as to play a growing role in the region. The Soviet Union collapsed and its forces and proxies left Cambodia. The complicated task of the top U.S. negotiator, Under Secretary of State for Asian and East Asian Affairs Richard Solomon, was to convince the five permanent members of the UN Security Council to support a UN peace deal and their Cambodian clients. Other important players – such as France`s Claude Martin, Indonesia`s Ali Alitas and Australia`s Gareth Ev-ans – also played a crucial role. “As the negotiations progressed, there was always a sense of tragedy demonstrated by a constant vigil led by monks singing and praying for peace,” recalled Ambas-Sador Mark Storella, a former member of the US delegation to the PPA and later deputy head of mission in Cambodia.
“Each of the P-5 members of the UN Security Council supported one of the four Cambodian factions and dragged their clients to the deal. After winning the 1968 presidential election, Richard Nixon became President of the United States in January 1969. He then replaced U.S. Ambassador Harriman with Henry Cabot Lodge Jr., who was later replaced by David Bruce. Also this year, the FLN set up a Provisional Revolutionary Government (PRG) to obtain government status during the talks. However, the main negotiations that led to the agreement did not take place at all at the peace conference, but were conducted during the secret negotiations between Kissinger and Lê Đức Thọ, which began on August 4, 1969. Negotiations at the Paris Peace Conference have not always been easy. Britain, France and Italy fought together as Allied powers in World War I.
The United States entered the war as an associated power in April 1917 and, while fighting alongside the Allies, was not obliged to abide by the already existing agreements between the Allied powers. .